The Springbird Diaries 1 and 2

A story that at first glance appears to be a detective story, a novel about a marital relationship being torn apart, or an exploration of buried secrets from the depths of World War II.
Toru Okada: A young Japanese man searches for his wife's missing cat. However, he soon finds himself on a journey searching for his wife herself in another hidden world. His search for the cat intersects with his search for his wife, and he meets a strange group of friends and enemies, each of whom comes with a story: starting with the cheerful girl, and the spiteful politician, and ending with a fighter whose life was upended after what he saw during the Japanese campaign in Manchuria.
A captivating novel in which humor is mixed with evil. A work of genius comparable in its field to the masterpieces of Yukio Mishima.